CN116511930B - Bending forming device and method based on lithium battery shell manufacturing - Google Patents
Bending forming device and method based on lithium battery shell manufacturing Download PDFInfo
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- CN116511930B CN116511930B CN202310776611.4A CN202310776611A CN116511930B CN 116511930 B CN116511930 B CN 116511930B CN 202310776611 A CN202310776611 A CN 202310776611A CN 116511930 B CN116511930 B CN 116511930B
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- 238000005452 bending Methods 0.000 title claims abstract description 98
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 75
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 106
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 37
- 230000000712 assembly Effects 0.000 claims abstract description 27
- 238000000429 assembly Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000000670 limiting effect Effects 0.000 claims description 31
- 238000009826 distribution Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a bending forming device and a method based on lithium battery shell manufacturing, wherein the bending forming device comprises the following steps: the support frame is arranged on the mounting frame in the middle of the support frame; the first expansion frame assembly and the second expansion frame assembly are arranged at the bottom of the expansion link mechanism; the aluminum profile cutting assembly is arranged at the front end and the rear end of the support frame and is used for forming an outer profile template by the aluminum body; and the molding cutting assemblies are arranged at the four corners of the first expansion frame assembly. According to the invention, through the structural arrangement of the first expansion frame component, the second expansion frame component and the first telescopic connecting rod mechanism, the bottom forming area and the side wall forming height of the lithium battery shell can be changed, so that lithium battery shells with different sizes can be formed, the working efficiency is greatly improved, and the adaptation range is enlarged.
Description
Technical Field
The invention relates to the technical field of lithium battery shell manufacturing, in particular to a bending forming device and a bending forming method based on lithium battery shell manufacturing.
Background
The aluminum shell used in the lithium ion battery at present is a shell with strong plasticity, and is different from the traditional steel shell in size, flexible and changeable, and light in weight due to the fact that the aluminum shell is formed by stamping by using a die;
in the lithium battery shell manufacturing is applied to the aluminum product body, on one hand, manufacturing process is tedious, and needs a plurality of stations to cooperate for use, on the other hand, to the lithium battery shell course of working with different sizes, volume, need change different processing templates, work efficiency is low, and adaptation scope is low.
Disclosure of Invention
The invention aims to provide a bending forming device and a bending forming method based on lithium battery shell manufacturing, which can change the forming area of the bottom of the lithium battery shell and the forming height of the side wall of the lithium battery shell through the structural arrangement of a first expansion frame assembly and a second expansion frame assembly and a first telescopic connecting rod mechanism, so that lithium battery shells with different sizes can be formed, the working efficiency is greatly improved, and the adaptation range is enlarged.
In order to achieve the above purpose, the present invention provides the following technical solutions: bending forming device based on lithium cell shell is made includes: the support frame is arranged on the mounting frame in the middle of the support frame; the first telescopic link mechanism is arranged at the top of the mounting frame and is used for simulating a rectangular diagonal; the first expansion frame assembly and the second expansion frame assembly are arranged at the bottom of the telescopic link mechanism; the outer contour cutting assembly is arranged at the front end and the rear end of the support frame, and works when the second expansion frame assembly expands and is overlapped with the edge of the aluminum body and is used for forming an outer contour template by the aluminum body; when the second expansion frame component is contracted inwards and compacted on the upper surface of the outer contour template, the upper surface is used for forming the bottom of the lithium battery shell; the forming and cutting assemblies are arranged at four corners of the first expansion frame assembly and are used for cutting corners of the outer contour template and forming side walls of the lithium battery shell; the second expansion connecting rod mechanism is arranged at the bottom of the mounting frame, a third expansion frame assembly is arranged on the second expansion connecting rod mechanism, and a bending mechanism is arranged on the third expansion frame assembly and used for butt-jointing the second expansion frame assembly and bending and forming after the corner of the outer contour template is cut.
Preferably, the first telescopic link mechanism has the same structure as the second telescopic link mechanism, the first telescopic link mechanism comprises two groups of telescopic bar assemblies, the two groups of telescopic bar assemblies have the same structure and are distributed in a cross manner, the first telescopic link mechanism further comprises a first connecting block fixed in the middle of the mounting frame, and a connecting column fixed at the bottom of the first connecting block, and the two groups of telescopic bar assemblies are rotationally connected to the outer wall of the connecting column; each group of telescopic bar component comprises a connecting frame, transmission teeth arranged in the middle of the connecting frame, racks which are arranged on two sides of the inner wall of the connecting frame and can slide, and the two racks are symmetrically distributed and meshed with the transmission teeth for transmission; two ends of the connecting frame are respectively provided with an adjusting rod, and the two adjusting rods are respectively fixed with the two racks; the miniature motor is arranged in the middle of the connecting frame and used for driving the transmission gear to rotate back and forth.
Preferably, the first expansion frame assembly, the second expansion frame assembly and the third expansion frame assembly have the same structure; the first expansion frame assembly comprises four groups of expansion ribs, the corners of the four groups of expansion ribs are rotationally connected through pin shafts and are vertically distributed in pairs, each group of expansion ribs comprises a connecting strip, two expansion strips which are arranged on the connecting strips in a sliding manner and are opposite to each other, and a damping layer is arranged between each expansion strip and the connecting strip; the hinge pin of the first expansion frame assembly is connected with the lower surface of the adjusting rod of the first expansion link mechanism through a support column, and the second expansion frame assembly is connected with the corner of the first expansion frame assembly through a fifth electric telescopic rod; and the pin shaft of the third expansion frame assembly is connected with the adjusting rod of the second expansion link mechanism through a seventh electric expansion link.
Preferably, the profile cutting assemblies are provided with two groups and are distributed on the front side and the rear side of the mounting frame; each group of contour cutting assemblies comprises a mounting block fixed at the end part of the mounting frame and an electric push rod arranged on the side wall of each mounting block; the electric push rod is characterized by further comprising an electric slide rail, wherein two ends of the electric slide rail are arranged at the telescopic ends of the two electric push rods through connecting pieces; the electric sliding rail is internally provided with an electric sliding block in a sliding manner, and a cutting knife fixed on the side wall of the electric sliding block and used for cutting the end part of the aluminum body and forming an outer contour template.
Preferably, the forming cutting assembly comprises a transmission assembly and a cutting head arranged on the transmission assembly, and the linear cutting assembly can be used for linear cutting in the direction of the cutting head X, Y when the transmission assembly is driven; the transmission assembly comprises a guide rail fixed at the corner of the first expansion frame assembly, a movable block capable of sliding is arranged in the guide rail, and a limiting frame fixed on the side wall of the movable block, a limiting block is in limiting sliding in the limiting frame, and a first spring is connected between the limiting block and the limiting frame and used for resetting the limiting block; the cutting head is fixed at the telescopic end of the sixth electric telescopic rod; the second connecting block is fixed at the end part of the guide rail, a fourth electric telescopic rod is transversely arranged on the second connecting block, a transmission plate is fixed at the output end of the fourth electric telescopic rod, a limit groove is obliquely formed in the transmission plate, a limit column is fixed at the top of the sixth electric telescopic rod, and the limit column can limit and slide in the limit groove; and a locking assembly arranged on the guide rail and used for switching the direction of the cutting head X, Y.
Preferably, the locking assembly comprises extension frames arranged at the tops of the guide rails, a third electric telescopic rod is arranged at the top of each extension frame, a pressing strip is fixed at the output end of each third electric telescopic rod, and the bottom ends of the pressing strips can penetrate through grooves formed in the guide rails and are abutted against the movable blocks.
Preferably, the second electric telescopic rod is fixed at the bottom end of the connecting column, and further comprises a sucker fixed at the telescopic end of the second electric telescopic rod, and the sucker can be adsorbed with the center of the outer contour template.
Preferably, the opposite surfaces of the supporting frame are also provided with auxiliary supporting components for supporting the aluminum body during cutting; the auxiliary support assembly comprises two groups of first electric telescopic rods which are oppositely arranged, and support plates which are fixed at the telescopic ends of the first electric telescopic rods, and when the two support plates are combined, the auxiliary support assembly is used for supporting the bottom of the aluminum body.
Preferably, the bending mechanisms are provided with four groups, and each group of bending mechanisms is respectively arranged on the telescopic rib where the third expansion frame component is positioned; each bending mechanism comprises a plurality of eighth electric telescopic rods, mounting seats arranged at the telescopic ends of the eighth electric telescopic rods, and mounting grooves formed in one side of the mounting seats, wherein bending rollers are arranged in the mounting grooves through sliding groove sliding block mechanisms, and reset springs are further arranged in the sliding groove sliding block mechanisms and used for resetting after the bending rollers rotate; the retaining plate is connected with the mounting seat through a telescopic column, and a second spring is arranged between the mounting seat and the retaining plate and sleeved on the outer wall of the telescopic column and used for resetting the retaining plate; the bending roller is provided with a bending groove which is arranged at 90 degrees, and one end of the bending groove is abutted against the bottom of the abutting plate.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the outer contour template can be formed by expanding the first expansion frame component and the second expansion frame component, on the premise that the initial diagonal distribution angle of the first expansion frame component and the second expansion frame component is unchanged, the first expansion frame component and the second expansion frame component are reduced in an equidistant manner, the equidistant reduced distance is the side wall forming height of the lithium battery shell, namely the bottom forming area and the side wall forming height of the lithium battery shell can be changed by structural arrangement of the first expansion frame component and the second expansion frame component and the first telescopic link mechanism, and lithium battery shells with different sizes can be formed, so that the working efficiency is greatly improved, and the adaptation range is enlarged.
The invention can cut the corners of the outline template and form the side wall of the lithium battery shell through the forming and cutting assembly, and the cutting modes are different, so that the cutting assembly can be used as different edging processes of the connecting part of the side wall of the lithium battery shell, and the overall performance of manufacturing the lithium battery shell is further improved.
According to the invention, through the structural characteristics of the bending mechanism, the mounting seat can move relative to the retaining plate, under the limiting action of the retaining plate, the bending roller rotates anticlockwise in the mounting groove, when the bending roller deflects to enable the right-angle edge on one side of the bending groove to be parallel to the lower surface of the retaining plate, the right-angle edge on the other side of the bending roller can realize 90-degree bending of the bottom and the side wall of the pre-bending template, so that the traceless bending process of the lithium battery shell is completed, scratches caused by the bending process are avoided, and the service life of the later stage is influenced.
Drawings
FIG. 1 is a schematic perspective view of the working state of the present invention;
FIG. 2 is a schematic perspective view of the structure of FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 1;
FIG. 4 is a schematic diagram of the structure of the present invention;
FIG. 5 is a schematic elevational view of the structure of FIG. 4;
FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 5;
FIG. 7 is a schematic view of a partially disassembled configuration of the forming cutter assembly;
FIG. 8 is a schematic perspective view of the structure of FIG. 7;
FIG. 9 is an enlarged partial schematic view of the forming cutter assembly;
FIG. 10 is a schematic view of a partially enlarged construction of a first pantograph linkage;
FIG. 11 is a schematic view of a partially enlarged structure of the bending mechanism;
FIG. 12 is a schematic view of a cutting structure of the present invention;
FIG. 13 is a schematic view of another cutting configuration of the forming cutting assembly;
FIG. 14 is a schematic view of an alternative cutting configuration of the forming cutter assembly;
fig. 15 is a schematic view of a region distribution structure of a pre-bending template.
In the figure: 1. a support frame; 2. a mounting frame; 3. an electric push rod; 4. an electric slide rail; 5. a cutting knife; 6. an electric slide block; 7. a first electric telescopic rod; 8. a mounting block; 9. a support plate; 10. an aluminum material body; 12. a drive plate; 13. a limit groove; 15. a suction cup; 16. a second electric telescopic rod; 18. a first connection block; 19. a connecting column; 20. a connection frame; 21. a rack; 22. an adjusting rod; 23. an extension bar; 24. a connecting strip; 25. a support column; 26. a guide rail; 27. pressing strips; 28. a second connection block; 29. an extension frame; 30. a third electric telescopic rod; 31. a fourth electric telescopic rod; 32. a movable block; 33. a fifth electric telescopic rod; 34. a cutting head; 35. a sixth electric telescopic rod; 36. a limit frame; 37. a limiting block; 38. a seventh electric telescopic rod; 39. a mounting base; 40. a retaining plate; 41. bending rollers; 42. a second spring; 43. an eighth electric telescopic rod; 44. a drive tooth; 45. a first spring; 46. a limit column; 47. and a mounting groove.
Detailed Description
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1: referring to fig. 1 to 15, the present invention preferably provides the following technical solutions: bending forming device based on lithium cell shell is made includes: the device comprises a support frame 1 and a mounting frame 2 arranged in the middle of the support frame 1; and a first telescopic link mechanism arranged at the top of the mounting frame 2 for simulating a rectangular diagonal; the first expansion frame assembly and the second expansion frame assembly are arranged at the bottom of the telescopic link mechanism; the outer contour cutting assembly is arranged at the front end and the rear end of the support frame 1, and works when the second expansion frame assembly expands and is overlapped with the edge of the aluminum body 10 and is used for forming an outer contour template by the aluminum body 10; when the second expansion frame component is contracted inwards and compacted on the upper surface of the outer contour template, the upper surface is used for forming the bottom of the lithium battery shell; the forming and cutting assemblies are arranged at four corners of the first expansion frame assembly and are used for cutting corners of the outer contour template and forming the side wall of the lithium battery shell, namely the pre-bending template; the device further comprises a second telescopic connecting rod mechanism arranged at the bottom of the mounting frame 2, a third expansion frame assembly is arranged on the second telescopic connecting rod mechanism, and a bending mechanism is arranged on the third expansion frame assembly and used for butt-jointing the second expansion frame assembly and bending and forming the outer contour template after corner cutting.
In the embodiment, under the setting condition, the middle point of the aluminum body 10 is coincident with the middle point of the mounting frame 2, namely, the middle points of the aluminum body and the mounting frame are coincident with each other in the X direction, and when the aluminum body is formed and bent, the aluminum body is matched with the first expansion frame assembly and the second expansion frame assembly through the first telescopic link mechanism;
firstly, setting a rectangular diagonal distribution angle of a lithium battery shell to be formed, and then under a first telescopic connecting rod mechanism, expanding a first expansion frame assembly and a second expansion frame assembly to enable the edge lengths of two sides of the first expansion frame assembly to coincide with the edges of two sides of an aluminum body 10, wherein the edge lengths of two ends of the corresponding second expansion frame assembly are cutting positions of an outline cutting assembly, namely, after the outline cutting assembly cuts, an outline template can be formed;
secondly, on the premise that the first expansion frame component and the second expansion frame component are contracted to ensure that the initial diagonal distribution angle is unchanged, the equidistant contraction distance is equal to the forming height of the side wall of the lithium battery shell, and the areas corresponding to the first expansion frame component and the second expansion frame component after contraction are the forming area of the bottom of the lithium battery shell;
then, forming and cutting assemblies at four corners of the first expansion frame assembly can cut corners of the outline template and form side walls of the lithium battery shell, and the cutting mode is shown in a tiling structure diagram of fig. 12, 13 and 14;
finally, under the action of a bending mechanism arranged on the third expansion frame assembly, when the third expansion frame assembly is upwards abutted against the second expansion frame assembly, the seamless bending after corner cutting can be realized through the structural design of the bending mechanism, and under different cutting modes, the three-dimensional structure diagram shown in figures 12, 13 and 14 is finally formed;
according to the process, the outer contour template can be formed through expansion of the first expansion frame component and the second expansion frame component, on the premise that the initial diagonal distribution angle of the first expansion frame component and the second expansion frame component is unchanged, equidistant shrinkage is carried out, the equidistant shrinkage distance is the side wall forming height of the lithium battery shell, namely the bottom forming area of the lithium battery shell is the bottom forming area of the lithium battery shell, namely the bottom forming area and the side wall forming height of the lithium battery shell can be changed through the structural arrangement of the first expansion frame component and the second expansion frame component, the lithium battery shell with different sizes can be formed, the working efficiency is greatly improved, the adaptation range is enlarged, meanwhile, the corner of the outer contour template can be cut and the side wall of the lithium battery shell is formed through the forming cutting component, the difference of the cutting modes can be used as the wrapping edge of the connecting part of the side wall of the lithium battery shell, and the overall performance of manufacturing of the lithium battery shell is further improved.
Further, the first telescopic connecting rod mechanism has the same structure as the second telescopic connecting rod mechanism, the first telescopic connecting rod mechanism comprises two groups of telescopic bar assemblies which have the same structure and are distributed in a cross manner, the first telescopic connecting rod mechanism further comprises a first connecting block 18 fixed in the middle of the mounting frame 2 and a connecting column 19 fixed at the bottom of the first connecting block 18, and the two groups of telescopic bar assemblies are rotationally connected to the outer wall of the connecting column 19; each group of telescopic bar components comprises a connecting frame 20, transmission teeth 44 arranged in the middle of the connecting frame 20, and racks 21 which are arranged on two sides of the inner wall of the connecting frame 20 and can slide, wherein the two racks 21 are symmetrically distributed and meshed with the transmission teeth 44 for transmission; two ends of the connecting frame 20 are also respectively provided with an adjusting rod 22, and the two adjusting rods 22 are respectively fixed with the two racks 21; and a micro motor provided at the middle of the connection frame 20 for driving the driving teeth 44 to rotate back and forth.
In this structure, as shown in fig. 1, 2, 3, 4, 6 and fig. 10, the two groups of telescopic bar assemblies have the same structure and are distributed in a cross manner, and can be equivalent to the diagonal line distribution of the rectangle, namely, the diagonal line of the rectangle where the lithium battery shell is located, the two groups of telescopic bar assemblies are rotationally connected to the outer wall of the connecting column 19, so that the distribution angle of the diagonal line can be set, and then the telescopic bar assemblies are structurally arranged, when the miniature motor where the miniature motor is located works, as shown in fig. 10, the transmission teeth 44 rotate back and forth, so that racks 21 on two sides can be driven to run in opposite directions or in opposite directions, thereby further driving two adjusting rods 22 to run in opposite directions or in opposite directions on the connecting frame 20, and the forming process of the outer contour template and the bottom forming area of the lithium battery shell can be realized by matching with the connecting action of the first expansion frame assembly and the second expansion frame assembly.
Further, the first expansion frame component, the second expansion frame component and the third expansion frame component have the same structure; the first expansion frame assembly comprises four groups of expansion ribs, the corners of the four groups of expansion ribs are rotationally connected through pin shafts and are vertically distributed in pairs, each group of expansion ribs comprises a connecting strip 24, two expansion strips 23 which are arranged on the connecting strip 24 in a sliding manner in an opposite manner, and a damping layer is arranged between each expansion strip 23 and the connecting strip 24; the pin shaft where the first expansion frame component is located is connected with the lower surface of the adjusting rod 22 where the first expansion link mechanism is located through a supporting column 25, and the second expansion frame component is connected with the corner where the first expansion frame component is located through a fifth electric telescopic rod 33; and the pin shaft of the third expansion frame component is connected with the adjusting rod 22 of the second expansion link mechanism through a seventh electric expansion link 38.
Under the effect of the telescopic bar assemblies, through the structural arrangement of the first, second and third telescopic frame assemblies, as shown in fig. 1, 4 and 5, due to the two telescopic bars 23 oppositely arranged on the connecting bar 24, after the two groups of telescopic bar assemblies set the distribution angle of diagonal lines and under the telescopic effect of the two groups of telescopic bar assemblies, the corners where the first and second telescopic frame assemblies are located can be driven to move, and the adaptive length adjustment of telescopic edges where the corresponding first and second telescopic frame assemblies are located, namely the equidistant change of the areas of the first and second telescopic frame assemblies is realized, and the damping layer arranged between the matched telescopic bars 23 and the connecting bar 24 is used for improving the stability after the area adjustment of the first and second telescopic frame assemblies.
Further, two groups of contour cutting assemblies are arranged and distributed on the front side and the rear side of the mounting frame 2; each group of contour cutting components comprises a mounting block 8 fixed at the end part of the mounting frame 2 and an electric push rod 3 arranged on the side wall of each mounting block 8; the electric push rod device also comprises an electric slide rail 4, wherein two ends of the electric slide rail 4 are arranged at the telescopic ends of the two electric push rods 3 through connecting pieces; the electric sliding rail 4 is internally provided with an electric sliding block 6 in a sliding manner, and a cutting knife 5 fixed on the side wall of the electric sliding block 6 and used for cutting the end part of the aluminum body 10 and forming an outer contour template.
When the two side edges of the first expansion frame assembly are overlapped with the two side edges of the aluminum body 10, the two side edges of the corresponding second expansion frame assembly are overlapped with the cutting positions of the outline cutting assembly, namely, after the outline cutting assembly cuts, an outer outline template can be formed, specifically, as shown in fig. 1, an infrared sensor is further arranged on the lower surface of the middle part of the electric sliding rail 4, when the electric push rod 3 drives the electric sliding rail 4Y to move in the axial direction, the infrared sensor is positioned at the two side edges of the second expansion frame assembly, at the moment, the infrared sensor sends signals and transmits information to the singlechip, and the singlechip receives signals, the two side edges of the electric sliding rail 4 are overlapped with the two side edges of the second expansion frame assembly and controls the cutting knife 5 of the electric sliding rail 4 to work, so that the cutting of the two ends of the aluminum body 10 can be realized, and the forming of the outer outline template can be completed.
Further, the forming cutting assembly comprises a transmission assembly and a cutting head 34 arranged on the transmission assembly, and when the transmission assembly is driven, the forming cutting assembly can be used for linear cutting in the direction of the cutting head 34X, Y; the transmission assembly comprises a guide rail 26 fixed at the corner of the first expansion frame assembly, a movable block 32 capable of sliding is arranged in the guide rail 26, a limit frame 36 fixed on the side wall of the movable block 32 is further included, a limit block 37 is limited and slides in the limit frame 36, and a first spring 45 is connected between the limit block 37 and the limit frame 36 and used for resetting the limit block 37; the cutting head 34 is fixed at the telescopic end of the sixth electric telescopic rod 35; the second connecting block 28 is fixed at the end part of the guide rail 26, a fourth electric telescopic rod 31 is transversely arranged on the second connecting block 28, a transmission plate 12 is fixed at the output end of the fourth electric telescopic rod 31, a limit groove 13 is obliquely formed in the transmission plate 12, a limit column 46 is fixed at the top of the sixth electric telescopic rod 35, and the limit column 46 can limit and slide in the limit groove 13; a locking assembly is also included on the rail 26 for switching the direction of the cutting head 34X, Y.
By the arranged forming and cutting assembly, as shown in fig. 4, 7, 8 and 9, the direction parallel to the pressing bar 27 in fig. 7 is set as the X direction, and the direction parallel to the limit frame 36 is set as the Y direction;
because the limiting block 37 slides in the limiting frame 36 in a limiting manner, the limiting frame 36 is in a fixed state at the moment, under the limiting transmission action of the limiting groove 13 and the limiting column 46, the cutting head 34 where the sixth electric telescopic rod 35 is positioned can be driven to cut in the Y direction under the limiting transmission action of the limiting groove 13 and the limiting column 46, when the locking assembly on the limiting frame 36 is unlocked by the limiting block 46, and the locking assembly on the guide rail 26 is unlocked by the movable block 32, the limiting frame 36 is in an active state at the moment, so that under the driving action of the fourth electric telescopic rod 31, the sixth electric telescopic rod 35 and the cutting head 34 can be driven to move in the X direction, and different cutting modes of the cutting head 34X, Y in the directions of the cutting frame 36 can be formed, such as that in fig. 12, 13 and 14, the lithium battery case is formed, and the lithium battery case is formed in the bottom area b of the lithium battery case is formed in the lithium case of fig. 15;
as shown in fig. 12, in this state, the cutting path of the cutting head 34 is a straight groove, specifically, unidirectional cutting in the Y or X direction, so that the formed c region can be used as a junction of the lithium battery shell, and a lithium battery shell body with a full-covered edge and no cover is formed, and in this embodiment, the subsequent welding mode is welding the outer walls of the c region and the b region;
as shown in fig. 13, the cutting path of the cutting head 34 is not completely rectangular, so that an upper-edge covered and uncovered lithium battery outer shell can be formed, and in this embodiment, the subsequent welding mode is welding the outer walls of the partial c area and the b area;
as shown in fig. 14, the cutting path of the cutting head 34 is completely rectangular in this state, so that the lithium battery outer case without the edge covering and the cover can be realized.
Further, the locking assembly comprises extension frames 29 arranged at the tops of the guide rails 26, a third electric telescopic rod 30 is arranged at the top of each extension frame 29, a pressing strip 27 is fixed at the output end of the third electric telescopic rod 30, and the bottom end of the pressing strip 27 can penetrate through a through groove formed in the guide rail 26 and is abutted against the movable block 32.
As shown in fig. 7 and 9, the movable block 32 can be locked by the locking assembly, so that the cutting head 34 can be switched in the X or Y direction, specifically, as shown in fig. 9, when the cutting head 34 needs to cut in the Y direction, the third electric telescopic rod 30 is extended downwards, and when the pressing bar 27 with the fixed telescopic end passes through the through groove and abuts against the movable block 32, the cutting in the Y direction is completed at this time, and when the cutting head 34 needs to cut in the X direction, the third electric telescopic rod 30 is retracted at this time, and the pressing bar 27 is separated from the movable block 32.
Further, the second electric telescopic rod 16 fixed at the bottom end of the connecting column 19 further comprises a sucking disc 15 fixed at the telescopic end of the second electric telescopic rod 16, and the sucking disc 15 can be adsorbed with the center of the outer contour template.
Through the second electric telescopic rod 16 that sets up to and the sucking disc 15 that the flexible end of second electric telescopic rod 16 is fixed, stability when further improving aluminum product body 10 cutting.
Further, the opposite surface of the supporting frame 1 is also provided with an auxiliary supporting component for supporting the aluminum body 10 during cutting; the auxiliary support assembly comprises two groups of first electric telescopic rods 7 which are oppositely arranged, and support plates 9 which are fixed at the telescopic ends of each group of first electric telescopic rods 7, and when the two support plates 9 are combined, the auxiliary support assembly is used for supporting the bottom of the aluminum body 10.
Through the auxiliary stay subassembly that sets up, when it is used for outline cutting subassembly, shaping cutting subassembly cutting aluminum product body 10, as shown in fig. 1, before bending aluminum product body 10, two backup pads 9 are in the concatenation state, and be located aluminum product body 10's lower surface, two backup pads 9 can stabilize when cutting aluminum product body 10 this moment, and cooperate the effect of sucking disc 15, stability when further improving aluminum product body 10 cutting, when aluminum product body 10 cutting is accomplished and is carried out the process of bending, the retract of accessible first electric telescopic handle 7, make backup pad 9 be the open state, as shown in the state of fig. 4, sucking disc 15 can adsorb the template of bending in advance this moment, third extension frame subassembly is located under the template of bending in advance, when it rises, cooperate the mechanism of bending on it, can realize the bending technology after the cutting.
Example 2: as another implementation mode of the invention, four groups of bending mechanisms are arranged, and each group of bending mechanisms is respectively arranged on the telescopic rib where the third expansion frame component is arranged; each bending mechanism comprises a plurality of eighth electric telescopic rods 43, a mounting seat 39 arranged at the telescopic ends of the plurality of eighth electric telescopic rods 43, and a mounting groove 47 arranged at one side of the mounting seat 39, wherein the mounting groove 47 is provided with a bending roller 41 through a sliding chute sliding block mechanism, and a reset spring is also arranged in the sliding chute sliding block mechanism and used for resetting the bending roller 41 after rotation; the retaining plate 40 is arranged on the other side of the mounting seat 39, the retaining plate 40 is connected with the mounting seat 39 through a telescopic column, and the second spring 42 is arranged between the mounting seat 39 and the retaining plate 40 and sleeved on the outer wall of the telescopic column and is used for resetting the retaining plate 40; bending grooves are formed in the bending roller 41, the bending grooves are arranged at 90 degrees, and one end of each bending groove is abutted against the bottom of the corresponding abutting plate 40.
Under this embodiment, through the structural characteristics of the bending mechanism, as shown in fig. 6 and 11, when the third expansion frame assembly is located under the pre-bending template, the seventh electric telescopic rod 38 is driven at this time, so that the seventh electric telescopic rod 38 pushes the third expansion frame assembly to lift and approach the pre-bending template, under the combined action of the third expansion frame assembly and the second expansion frame assembly, the clamping stability of the bottom edge of the lithium battery shell is realized, at this time, the bending mechanism is further driven to work, specifically, as shown in fig. 11, when the eighth electric telescopic rod 43 drives the mounting seat 39 to move upwards, the retaining plate 40 abuts against the bottom of the pre-bending template, meanwhile, the bending roller 41 is provided with a bending groove, one end of the bending groove abuts against the bottom of the retaining plate 40, and as the eighth electric telescopic rod 43 further lifts the mounting seat 39, the mounting seat 39 can move relative to the retaining plate 40, under the limiting action of the retaining plate 40, the bending roller 41 rotates anticlockwise in the mounting groove 47, and because the bending groove is arranged at 90 DEG, when the roller 41 deflects, so that one side of the groove is parallel to the lower surface of the retaining plate 40, the other side of the lithium battery shell is bent, and the lithium battery shell can be bent at the bottom of the side of the retaining plate without bending groove.
As another embodiment of the bending mechanism, the bending process can also be applied to the bending positions of the b area and the c area, namely the bending process corresponding to the side wall and the edge wrapping position of the lithium battery shell.
Example 3: the bending method for manufacturing the lithium battery shell is applied to the bending forming device based on manufacturing the lithium battery shell, and comprises the following steps of:
s1, setting a rectangular diagonal distribution angle of a lithium battery shell to be formed, and then expanding a first expansion frame assembly and a second expansion frame assembly under a first telescopic connecting rod mechanism to enable the edge lengths of two sides of the first expansion frame assembly to coincide with the edges of two sides of an aluminum body, wherein the edge lengths of two ends of the corresponding second expansion frame assembly are cutting positions of an outline cutting assembly, namely, after the outline cutting assembly cuts, an outline template can be formed;
s2, on the premise that the first expansion frame assembly and the second expansion frame assembly are contracted to ensure that the initial diagonal distribution angle is unchanged, the first expansion frame assembly and the second expansion frame assembly are equidistantly contracted, the equidistant contracted distance is the forming height of the side wall of the lithium battery shell, and the areas corresponding to the first expansion frame assembly and the second expansion frame assembly after contraction are the forming area of the bottom of the lithium battery shell;
s3, forming and cutting assemblies at four corners of the first expansion frame assembly can cut corners of the outline template and form side walls of the lithium battery shell;
and S4, under the action of a bending mechanism arranged on the third expansion frame assembly, when the third expansion frame assembly is upwards abutted against the second expansion frame assembly, the seamless bending after corner cutting can be realized through the structural design of the bending mechanism.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The detachable mounting mode is various, for example, the detachable mounting mode can be matched with the buckle through plugging, for example, the detachable mounting mode can be realized through a bolt connection mode, and the like.
The conception, specific structure, and technical effects produced by the present invention are clearly and completely described above in connection with the embodiments and the drawings so as to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.
The foregoing embodiments are provided for further explanation of the present invention and are not to be construed as limiting the scope of the present invention, and some insubstantial modifications and variations of the present invention, which are within the scope of the invention, will be suggested to those skilled in the art in light of the foregoing teachings.
Claims (10)
1. Bending forming device based on lithium cell shell is made, its characterized in that includes:
the device comprises a support frame (1) and a mounting frame (2) arranged in the middle of the support frame (1);
the first telescopic link mechanism is arranged at the top of the mounting frame (2) and is used for simulating a rectangular diagonal;
the first expansion frame assembly and the second expansion frame assembly are arranged at the bottom of the telescopic link mechanism;
the outer contour cutting assembly is arranged at the front end and the rear end of the support frame (1), and works when the second expansion frame assembly expands and is overlapped with the edge of the aluminum body (10) and is used for forming an outer contour template by the aluminum body (10);
when the second expansion frame component is contracted inwards and compacted on the upper surface of the outer contour template, the upper surface is used for forming the bottom of the lithium battery shell;
the forming and cutting assemblies are arranged at four corners of the first expansion frame assembly and are used for cutting corners of the outer contour template and forming side walls of the lithium battery shell;
the device is characterized by further comprising a second telescopic connecting rod mechanism arranged at the bottom of the mounting frame (2), wherein a third expansion frame assembly is arranged on the second telescopic connecting rod mechanism, and a bending mechanism is arranged on the third expansion frame assembly and is used for butt-jointing the second expansion frame assembly and bending and forming after the corners of the outer contour template are cut.
2. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
the first telescopic connecting rod mechanism has the same structure as the second telescopic connecting rod mechanism, the first telescopic connecting rod mechanism comprises two groups of telescopic strip components, the two groups of telescopic strip components have the same structure and are distributed in a cross manner, the first telescopic connecting rod mechanism further comprises a first connecting block (18) fixed in the middle of the mounting frame (2), and a connecting column (19) fixed at the bottom of the first connecting block (18), and the two groups of telescopic strip components are rotationally connected to the outer wall of the connecting column (19);
each group of telescopic bar component comprises a connecting frame (20), transmission teeth (44) arranged in the middle of the connecting frame (20), racks (21) which are arranged on two sides of the inner wall of the connecting frame (20) and can slide, and the two racks (21) are symmetrically distributed and meshed with the transmission teeth (44) for transmission;
two ends of the connecting frame (20) are respectively provided with an adjusting rod (22), and the two adjusting rods (22) are respectively fixed with the two racks (21);
the miniature motor is arranged in the middle of the connecting frame (20) and is used for driving the transmission gear (44) to rotate back and forth.
3. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
the first expansion frame assembly, the second expansion frame assembly and the third expansion frame assembly have the same structure;
the first expansion frame assembly comprises four groups of expansion ribs, the four groups of expansion rib corners are rotationally connected through pin shafts and are vertically distributed in pairs, each group of expansion ribs comprises a connecting strip (24), two expansion strips (23) which are arranged on the connecting strips (24) in a sliding manner in an opposite manner, and a damping layer is arranged between each expansion strip (23) and the connecting strip (24);
the pin shaft of the first expansion frame assembly is connected with the lower surface of the adjusting rod (22) of the first expansion link mechanism through a supporting column (25), and the second expansion frame assembly is connected with the corner of the first expansion frame assembly through a fifth electric telescopic rod (33);
and the pin shaft of the third expansion frame component is connected with the adjusting rod (22) of the second expansion link mechanism through a seventh electric expansion link (38).
4. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
the two groups of outline cutting assemblies are arranged and distributed on the front side and the rear side of the mounting frame (2);
each group of contour cutting components comprises a mounting block (8) fixed at the end part of the mounting frame (2), and an electric push rod (3) arranged on the side wall of each mounting block (8);
the electric push rod also comprises an electric slide rail (4), and two ends of the electric slide rail (4) are arranged at the telescopic ends of the two electric push rods (3) through connecting pieces;
the electric sliding rail (4) is internally provided with an electric sliding block (6) in a sliding manner, and a cutting knife (5) fixed on the side wall of the electric sliding block (6) is used for cutting the end part of the aluminum body (10) and forming an outer contour template.
5. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
the forming cutting assembly comprises a transmission assembly and a cutting head (34) arranged on the transmission assembly, and when the transmission assembly is driven, the forming cutting assembly can be used for linear cutting in the X, Y direction of the cutting head (34);
the transmission assembly comprises a guide rail (26) fixed at the corner of the first expansion frame assembly, a movable block (32) capable of sliding is arranged in the guide rail (26), the transmission assembly further comprises a limiting frame (36) fixed on the side wall of the movable block (32), a limiting block (37) is limited and slid in the limiting frame (36), and a first spring (45) is connected between the limiting block (37) and the limiting frame (36) and used for resetting the limiting block (37);
the cutting head (34) is fixed at the telescopic end of the sixth electric telescopic rod (35);
the second connecting block (28) is fixed at the end part of the guide rail (26), a fourth electric telescopic rod (31) is transversely arranged on the second connecting block (28), a transmission plate (12) is fixed at the output end of the fourth electric telescopic rod (31), a limit groove (13) is obliquely formed in the transmission plate (12), a limit column (46) is fixed at the top of the sixth electric telescopic rod (35), and the limit column (46) can limit and slide in the limit groove (13);
and a locking assembly arranged on the guide rail (26) is also included for switching the direction of the cutting head (34) X, Y.
6. The bending and forming device based on lithium battery case manufacturing according to claim 5, wherein:
the locking assembly comprises extension frames (29) arranged at the tops of the guide rails (26), a third electric telescopic rod (30) is arranged at the inner top of each extension frame (29), a pressing strip (27) is fixed at the output end of each third electric telescopic rod (30), and the bottom ends of the pressing strips (27) can penetrate through grooves formed in the guide rails (26) and are in abutting contact with the movable blocks (32).
7. The bending and forming device based on lithium battery case manufacturing according to claim 2, wherein:
the electric telescopic connecting device comprises a second electric telescopic rod (16) fixed at the bottom end of the connecting column (19), and further comprises a sucker (15) fixed at the telescopic end of the second electric telescopic rod (16), wherein the sucker (15) can be adsorbed with the center of the outer contour template.
8. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
the opposite surface of the support frame (1) is also provided with an auxiliary support component for supporting the aluminum body (10) during cutting;
the auxiliary support assembly comprises two groups of first electric telescopic rods (7) which are oppositely arranged, and support plates (9) which are fixed at the telescopic ends of each group of first electric telescopic rods (7), and when the two support plates (9) are combined, the auxiliary support assembly is used for supporting the bottom of the aluminum body (10).
9. The bending and forming device based on lithium battery case manufacturing according to claim 1, wherein:
four groups of bending mechanisms are arranged, and each group of bending mechanisms is respectively arranged on the telescopic rib where the third expansion frame component is positioned;
each group of bending mechanism comprises a plurality of eighth electric telescopic rods (43), a mounting seat (39) arranged at the telescopic ends of the plurality of eighth electric telescopic rods (43), and a mounting groove (47) arranged on one side of the mounting seat (39), wherein the mounting groove (47) is provided with a bending roller (41) through a sliding chute sliding block mechanism, and a reset spring is further arranged in the sliding chute sliding block mechanism and used for resetting the bending roller (41) after rotation;
the retaining plate (40) is arranged on the other side of the mounting seat (39), the retaining plate (40) is connected with the mounting seat (39) through a telescopic column, and a second spring (42) is arranged between the mounting seat (39) and the retaining plate (40) and sleeved on the outer wall of the telescopic column, and is used for resetting the retaining plate (40);
bending grooves are formed in the bending rollers (41), the bending grooves are arranged at 90 degrees, and one ends of the bending grooves are abutted against the bottoms of the abutting plates (40).
10. The bending method for manufacturing the lithium battery shell is applied to the bending forming device based on manufacturing the lithium battery shell, and is characterized in that: the method comprises the following steps:
s1, setting a rectangular diagonal distribution angle of a lithium battery shell to be formed, and then expanding a first expansion frame assembly and a second expansion frame assembly under a first telescopic connecting rod mechanism to enable the edge lengths of two sides of the first expansion frame assembly to coincide with the edges of two sides of an aluminum body, wherein the edge lengths of two ends of the corresponding second expansion frame assembly are cutting positions of an outline cutting assembly, namely, after the outline cutting assembly cuts, an outline template can be formed;
s2, on the premise that the first expansion frame assembly and the second expansion frame assembly are contracted to ensure that the initial diagonal distribution angle is unchanged, the first expansion frame assembly and the second expansion frame assembly are equidistantly contracted, the equidistant contracted distance is the forming height of the side wall of the lithium battery shell, and the areas corresponding to the first expansion frame assembly and the second expansion frame assembly after contraction are the forming area of the bottom of the lithium battery shell;
s3, forming and cutting assemblies at four corners of the first expansion frame assembly can cut corners of the outline template and form side walls of the lithium battery shell;
and S4, under the action of a bending mechanism arranged on the third expansion frame assembly, when the third expansion frame assembly is upwards abutted against the second expansion frame assembly, the seamless bending after corner cutting can be realized through the structural design of the bending mechanism.
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| CN202310776611.4A CN116511930B (en) | 2023-06-29 | 2023-06-29 | Bending forming device and method based on lithium battery shell manufacturing |
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